I can't rate Riders' Retreat highly enough. It's run by a guy called Alan Millway who is a top bloke and a pretty handy rider to boot. He has a bunch of self catering chalets in Morzine and Les Gets, all top quality and including WiFi, Sky and very secure bike storage. I stayed in Chalet L'Curie and it was lovely. In the winter, this Chalet is rented out as a luxury ski chalet. They don't do guided riding (as the French are very sniffy about allowing only qualified guides, i.e. French people, do this) but each Chalet has a resident house keeper who looks after things and typically also rides bikes and can therefore join you. Of course they always know where they are going so it helps if you sort of follow them.http://www.riders-retreat.co.uk/